lkml.org 
[lkml]   [2017]   [Sep]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 21/41] perf ui progress: Fix progress update
Date
From: Jiri Olsa <jolsa@kernel.org>

We currently update the 'next' variable only with a single step value.
But it's possible the 'adv' update is bigger than single 'step' value.
This would leave 'next' value under counted and force unnecessary
ui_progress__ops->update calls.

Calculate the amount of steps we need for 'adv' update and increase the
'next' with that amounts of steps.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170908120510.22515-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/progress.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index a9c15804b1f6..ae91c8148edf 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
#include "../cache.h"
#include "progress.h"

@@ -14,10 +15,14 @@ struct ui_progress_ops *ui_progress__ops = &null_progress__ops;

void ui_progress__update(struct ui_progress *p, u64 adv)
{
+ u64 last = p->curr;
+
p->curr += adv;

if (p->curr >= p->next) {
- p->next += p->step;
+ u64 nr = DIV_ROUND_UP(p->curr - last, p->step);
+
+ p->next += nr * p->step;
ui_progress__ops->update(p);
}
}
--
2.13.5
\
 
 \ /
  Last update: 2017-09-12 17:12    [W:0.186 / U:1.100 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site